REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3249
Intel's Trust Domain Extensions (Intel TDX) refers to an Intel technology that extends Virtual Machines Extensions (VMX) and Multi-Key Total Memory Encryption (MKTME) with a new kind of virutal machines guest called a Trust Domain (TD). A TD is desinged to run in a CPU mode that protects the confidentiality of TD memory contents and the TD's CPU state from other software, including the hosting Virtual-Machine Monitor (VMM), unless explicitly shared by the TD itself. The patch-sets to support Intel TDX in OvmfPkg is split into several waves. This is wave1 which adds Intel TDX support in OvmfPkg/ResetVector. Patch 1 add the PCDs of BFV/CFV. BFV is the code part of the image. CFV is the configuration part. BFV is measured by VMM and CFV is measured by TDVF itself. Patch 2 add TdxMetadata in OvmfPkg/ResetVector. It describes the information about the image so that VMM can do the initialization and measurement based on these information. Patch 3 add a null entry point of InitTdx in UefiCpuPkg/ResetVector. The actual implemenation of InitTdx is in OvmfPkg/ResetVector. Patch 4 add the ReloadFlat32 in UefiCpuPkg/ResetVector. Patch 5 update the UefiCpuPkg/Vtf0/Main.asm to add Main32 entrypoint. It is because on reset all the CPUs are in 32-bit protected mode. Patch 6 put above stuff all together to enable Intel TDX in OvmfPkg ResetVector phase. [TDX]: https://software.intel.com/content/dam/develop/external/us/en/ documents/tdx-whitepaper-final9-17.pdf [TDVF]: https://software.intel.com/content/dam/develop/external/us/en/ documents/tdx-virtual-firmware-design-guide-rev-1.pdf Code is at https://github.com/mxu9/edk2/tree/tdvf_wave1 Cc: Ard Biesheuvel <ardb+tianoc...@kernel.org> Cc: Jordan Justen <jordan.l.jus...@intel.com> Cc: Brijesh Singh <brijesh.si...@amd.com> Cc: Erdem Aktas <erdemak...@google.com> Cc: James Bottomley <j...@linux.ibm.com> Cc: Jiewen Yao <jiewen....@intel.com> Cc: Tom Lendacky <thomas.lenda...@amd.com> Cc: Eric Dong <eric.d...@intel.com> Cc: Ray Ni <ray...@intel.com> CC: Debkumar De <debkumar...@intel.com> Signed-off-by: Min Xu <min.m...@intel.com> Min Xu (6): OvmfPkg: Add Tdx BFV/CFV PCDs and PcdOvmfImageSizeInKb OvmfPkg: Add Tdx metadata UefiCpuPkg/ResetVector: Add InitTdx in UefiCpuPkg UefiCpuPkg/ResetVector: Add ReloadFlat32 in UefiCpuPkg UefiCpuPkg/ResetVector: Add Main32 entry point in Main.asm OvmfPkg/ResetVector: Update ResetVector to support Tdx OvmfPkg/OvmfPkg.dec | 13 +++ OvmfPkg/OvmfPkgDefines.fdf.inc | 12 ++- OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm | 38 ++++++++ OvmfPkg/ResetVector/Ia32/Flat32ToFlat64.asm | 47 +++++++++ OvmfPkg/ResetVector/Ia32/InitTdx.asm | 57 +++++++++++ OvmfPkg/ResetVector/Ia32/PageTables64.asm | 41 ++++++++ OvmfPkg/ResetVector/ResetVector.inf | 11 ++- OvmfPkg/ResetVector/ResetVector.nasmb | 64 +++++++++++- OvmfPkg/ResetVector/X64/TdxMetadata.asm | 97 +++++++++++++++++++ UefiCpuPkg/ResetVector/Vtf0/Ia32/InitTdx.asm | 15 +++ .../ResetVector/Vtf0/Ia32/ReloadFlat32.asm | 43 ++++++++ UefiCpuPkg/ResetVector/Vtf0/Main.asm | 45 +++++++++ UefiCpuPkg/ResetVector/Vtf0/Vtf0.nasmb | 2 + 13 files changed, 481 insertions(+), 4 deletions(-) create mode 100644 OvmfPkg/ResetVector/Ia32/InitTdx.asm create mode 100644 OvmfPkg/ResetVector/X64/TdxMetadata.asm create mode 100644 UefiCpuPkg/ResetVector/Vtf0/Ia32/InitTdx.asm create mode 100644 UefiCpuPkg/ResetVector/Vtf0/Ia32/ReloadFlat32.asm -- 2.29.2.windows.2 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#77675): https://edk2.groups.io/g/devel/message/77675 Mute This Topic: https://groups.io/mt/84144136/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
